What does not change,when sound enters from one medius to another?
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When waves travel from one medium to another the frequency never changes. As waves travel into the denser medium, they slow down and wavelength decreases. Part of the wave travels faster for longer causing the wave to turn. The wave is slower but the wavelength is shorter meaning frequency remains the same.
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QUESTION
What does not change,when sound enters from one medius to another?
ANSWER
Frequency does not change.
The frequency of sound depends upon the source of sound, not the medium of propagation. Hence, it does not change.
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